A still alive and updated archive of telephony information. Area codes, exchanges, regional telcos, rate centers, deployed hardware types, and more.
You can even search on some data sets.
The Telephone Central Office Building Pictures website was created for one reason only - historical preservation.
The telephone central office is the location where local landline telephone switching takes place. Inside is a specialized electronic telephone "switch" where phone calls are transferred from one customer to another, or to another central office via a long distance circuit.
The central office is almost as old as the telephone itself. Often times these buildings were built many years ago with an architecture that has been long ago forgotten. Many times these buildings were very large to accommodate the analog switching equipment of the day - Step by Step, Crossbar, Panel or early electronic. These days almost all central offices have modernized their switching equipment to a fully electronic system that takes up only a tiny space where years ago large electro-mechanical systems took up floors of space.
As telephony has changed over time, many people are now abandoning the traditional landline telephone for cellular or various Voice over IP methods. The theory is that as traditional landline use goes down, these buildings of yesteryear may disappear.
The goal of this website is to preserve these buildings for future generations in the years ahead. About 50 years ago, a telephone preservationist called "Mark Bernay" started recording telephone sounds. He now has a website called Phone Trips. Also on that website are sounds from his friend "Evan Doorbell" from 45 years ago. All the switching equipment that made these sounds are long gone. With the help of these two folks and others like them, we are able to listen to these sounds today. This site has as similar goal - preserving what we have now for people to look at in the future.
A utility to automate the installation, maintenance, and debugging of Asterisk/DAHDI, while integrating additional patches to provide the richest telephony experience. Useful for: Automating installation and maintenance of Asterisk, Asterisk Test Suite, Asterisk Test Framework, DAHDI Linux, DAHDI Tools, and related resources; validating Asterisk configuration; finding common syntax errors in dialplan code; finding missing audio files referenced by the Playback, BackGround, and Read applications; suggesting optimizations that can be made to dialplan code to make it more readable and efficient; generating Asterisk user documentation; debugging Asterisk configuration; generating core dumps, automating PhreakNet boilerplate dialplan installation.
Primarily supported on Debian-based Linux systems. Support has also been added for FreeBSD. Pull requests to add support for other Linux distros or BSD are welcome.
A collection of useful information and tools pertaining to DTMF.
A simple v.23 modem including the data link layer. This is an application for Asterisk. Place a call over SIP and it'll connect via Telnet to a pre-configured service in the dialplan.
This is F.O.B. (Flexible Orange Box), inspired by the popular S.O.B. (Software Orange Box) program for Windows.
When connecting SIP FXS devices with a Class 5 switch, the ATA will not see a Call Waiting presented to it when there is a Call Waiting. Thus, it is necessary to signal the FSK directly to the CPE in-band from the switch. Asterisk does not have any provision to do this, so this needs to be done with an external program.
This program is intended to be a legitimate Type II Caller ID Generator, used for the purpose of Call Waiting Caller ID (Of course, functionally, it can be used just like any other orange box to spoof call waitings if desired - we are not responsible for any misuse of this program). This allows you to send Call Waiting Caller ID to a remote endpoint, even if no Call Waiting is presented to the remote endpoint (e.g. Analog Telephone Adapter), allowing for CWCID to be provided even when advanced bridging capabilites are being used, by "orange boxing" in band for legitimate purposes.
A self-hosted app utilizing Twilio to manage and direct calls from the enterphone to each of our phones. As an added bonus, it also trigger Philips Hue lights in our apartment to flash when a buzz is incoming. When a visitor dials your unit on the enterphone, the call will go out to the Twilio service, and will connect to the app running on your server. When the app receives a valid request originating from the Apartment Enterphone number, it will drop that call into a conference room (with hold music) while it then initiates calls out to the two tenants.
When a call one tenant is answered, the call to the other tenant is terminated, and the answered call gets dropped into the same conference room, beginning the conference. You can then speak to the visitor, and key presses get passed through to the enterphone system for remote unlocking of the door.
dialup.world is (currently) a three-line dial-up ISP!
Sounds for Asterisk, recorded by Pat Fleet (the original voice of Ma Bell).
A Voip Wardialer for the phreaking of 2020.
For a price of a cinema ticket a month we offer a physical phone number. All your messages are encrypted with your personal key that we cannot access. Has a REST API you can send and receive messages through. They can store contact lists for you, deniably they claim. Accepts cryptocurrency for payment.
A curated list of telco resources and projects.
Please note multiple researchers published and compiled this work. This is a list of their research in the 3G/4G/5G Cellular security space. This information is intended to consolidate the community's knowledge. Thank you, I plan on frequently updating this "Awesome Cellular Hacking" curated list with the most up to date exploits, blogs, research, and papers.
At Futel, we believe in the preservation of public telephone hardware as a means of providing access to the agora for everybody, and toward that goal we are privileged to provide free telephone calls, voicemail, and telephone-mediated services. We do not judge the motivations of our users, or who they choose to call; if they don’t have someone to call, we can provide a presence on the other end. Denial of telephony services has long been a tactic used against undesirable populations, and our devices will counteract that. But more importantly, we will help to establish a new era of communication, one in which reaching out is not only desirable, but mandatory.
Based in Portland, OR.
Github repos here: https://github.com/kra
A small hobby software PBX for the tildeverse. So far users can make calls, leave voicemails and participate in a multi-user conference with more features to come. The numbers are loosely broken down by tilde, with each tilde having its own prefix "area code." It's set aside for tilde users only, and is not connected to the PSTN - you have to be an active tilde user just to get the admin's attention.
A group of telephony hobbyists who restore and maintain old equipment. They figure out how to get their gear VoIP-enabled and built their own PSTN on top of the Net by hooking everything together. It's pretty serious, plus they document their work pretty well.
How to create a portable GSM BTS which can be used either to create a private ( and vendor free! ) GSM network or for GSM active tapping/interception/hijacking … yes, with some (relatively) cheap electronic equipment you can basically build something very similar to what the governments are using from years to perform GSM interception.